20808211734

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{643}}^1\times {\mathrm{78167}}^1$

素因数の和:78841

約数の個数: 48

約数和(自身を含む): 47118419712

約数和(自身を除く): 26310207978

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 643, 1286, 1929, 3858, 5787, 11574, 14789, 29578, 44367, 78167, 88734, 133101, 156334, 234501, 266202, 469002, 703503, 1407006, 1797841, 3595682, 5393523, 10787046, 16180569, 32361138, 50261381, 100522762, 150784143, 301568286, 452352429, 904704858, 1156011763, 2312023526, 3468035289, 6936070578, 10404105867, 20808211734]

約数ペア:

[(1, 20808211734), (2, 10404105867), (3, 6936070578), (6, 3468035289), (9, 2312023526), (18, 1156011763), (23, 904704858), (46, 452352429), (69, 301568286), (138, 150784143), (207, 100522762), (414, 50261381), (643, 32361138), (1286, 16180569), (1929, 10787046), (3858, 5393523), (5787, 3595682), (11574, 1797841), (14789, 1407006), (29578, 703503), (44367, 469002), (78167, 266202), (88734, 234501), (133101, 156334)]